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Xu J, Kidder BL. KDM5B decommissions the H3K4 methylation landscape of self-renewal genes during trophoblast stem cell differentiation. Biol Open. 2018;7(5)doi: 10.1242/bio.031245.
Xu, J., & Kidder, B. L. (2018). KDM5B decommissions the H3K4 methylation landscape of self-renewal genes during trophoblast stem cell differentiation. Biology open, 7(5), . https://doi.org/10.1242/bio.031245
Xu, Jian, and Kidder, Benjamin L. "KDM5B decommissions the H3K4 methylation landscape of self-renewal genes during trophoblast stem cell differentiation." Biology open vol. 7,5 (2018). doi: https://doi.org/10.1242/bio.031245
Xu J, Kidder BL. KDM5B decommissions the H3K4 methylation landscape of self-renewal genes during trophoblast stem cell differentiation. Biol Open. 2018 May 10;7(5). doi: 10.1242/bio.031245. PMID: 29748167; PMCID: PMC5992522.
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Biol Open. 2018 May 10;7(5). doi: 10.1242/bio.031245.

KDM5B decommissions the H3K4 methylation landscape of self-renewal genes during trophoblast stem cell differentiation.

Biology open

Jian Xu, Benjamin L Kidder

Affiliations

  1. Department of Neurology, Wayne State University School of Medicine, Detroit, MI 48201, USA.
  2. Department of Oncology, Wayne State University School of Medicine, Detroit, MI 48201, USA [email protected].
  3. Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI 48201, USA.

PMID: 29748167 PMCID: PMC5992522 DOI: 10.1242/bio.031245

Abstract

Trophoblast stem (TS) cells derived from the trophectoderm (TE) of mammalian embryos have the ability to self-renew indefinitely or differentiate into fetal lineages of the placenta. Epigenetic control of gene expression plays an instrumental role in dictating the fate of TS cell self-renewal and differentiation. However, the roles of histone demethylases and activating histone modifications such as methylation of histone 3 lysine 4 (H3K4me3/me2) in regulating TS cell expression programs, and in priming the epigenetic landscape for trophoblast differentiation, are largely unknown. Here, we demonstrate that the H3K4 demethylase, KDM5B, regulates the H3K4 methylome and expression landscapes of TS cells. Depletion of KDM5B resulted in downregulation of TS cell self-renewal genes and upregulation of trophoblast-lineage genes, which was accompanied by altered H3K4 methylation. Moreover, we found that KDM5B resets the H3K4 methylation landscape during differentiation in the absence of the external self-renewal signal, FGF4, by removing H3K4 methylation from promoters of self-renewal genes, and of genes whose expression is enriched in TS cells. Altogether, our data indicate an epigenetic role for KDM5B in regulating H3K4 methylation in TS cells and during trophoblast differentiation.

© 2018. Published by The Company of Biologists Ltd.

Keywords: ChIP-Seq; Chromatin; Differentiation; Epigenetics; H3K4me3; Histone demethylase; KDM5B; Multipotent; Trophoblast stem cells

Conflict of interest statement

Competing interestsThe authors declare no competing or financial interests.

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